List of Famous people who died in 1973

Douglas Richards Kennedy was an American supporting actor originally from New York City who appeared in more than 190 films between 1935 and 1973.

Ralph Hartzler Fox was an American mathematician. As a professor at Princeton University, he taught and advised many of the contributors to the Golden Age of differential topology, and he played an important role in the modernization and main-streaming of knot theory.

Allan "Rocky" Lane was an American studio leading man and the star of many cowboy B-movies in the 1940s and 1950s. He appeared in more than 125 films and TV shows in a career lasting from 1929 to 1966. He is best known for his portrayal of Red Ryder and for being the voice of the talking horse on the television series Mister Ed, beginning in 1961.

Alexey Andreevich Lyapunov was a Soviet mathematician and an early pioneer of computer science. One of the founders of Soviet cybernetics, Lyapunov was member of the Soviet Academy of Sciences and a specialist in the fields of real function theory, mathematical problems of cybernetics, set theory, programming theory, mathematical linguistics, and mathematical biology.

Sergei Konstantinovich Tumansky was a designer of Soviet aircraft engines and the chief designer in the Tumansky Design Bureau, OKB-300. He worked in TsIAM, at the aircraft-engine plant N 29, in Leah.

Alfred Ernout was a French philologist, specialized in the Latin language.